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Xiaoli Zhang


526 total contributions since 2016

Xiaoli Zhang's Badges

  • Tiles Challenge Master
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  • ASEE Challenge Master
  • CUP Challenge Master
  • Cody Challenge Master
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Solved


Volume of a box
Given a box with a length a, width b, and height c. Solve the volume of the box.

presque 2 ans ago

Solved


Generalised Hamming Number
Inspired by Project Euler n°204 and Problem 1308 by James A generalised Hamming number of type n, has no prime factor larger ...

presque 3 ans ago

Solved


nth Rational Number
Return the nth rational number. This is the inverse to Problem <http://www.mathworks.com/matlabcentral/cody/problems/1471 1...

presque 3 ans ago

Solved


Polygonal numbers
The task of <http://www.mathworks.co.uk/matlabcentral/cody/problems/5 Problem 5> is to calculate triangular numbers. By playing ...

presque 3 ans ago

Solved


Polite numbers. Politeness.
A polite number is an integer that sums of two or more consecutive positive integers. Politeness of a positive integer is a num...

presque 3 ans ago

Solved


For loops: Odds sum
Write a for loop that assigns summedValue with the sum of all odd values from 1 to userNum. Assume userNume is always greater th...

presque 3 ans ago

Solved


N-th Odious
Given index n return n-th <https://oeis.org/A000069 odious number>.

presque 3 ans ago

Solved


Bell Number calculator
Calculate a vector of Bell numbers for sets up to length n. Bell numbers are the maximum number of partitions of a set. See the ...

presque 3 ans ago

Solved


Polite numbers. N-th polite number.
A polite number is an integer that sums of at least two consecutive positive integers. For example _7 = 3+4_ so 7 is a polite...

presque 3 ans ago

Solved


Bridge toll
Complete the example to calculate finalToll. The base toll for a bridge is baseToll. If the vehicle's weight is over 5,000 pound...

presque 3 ans ago

Solved


Perfect Square or not
find Given input x is perfect square or not,if yes then output y=1.else y=0

presque 3 ans ago

Solved


Find the logic
There exists one logic in between input and output. Find it (easy math). Example 1: x=13 then y=339; Example 2: x=26...

presque 3 ans ago

Solved


Writing a while loop
Write a while loop that continues to increment userValue by 5 until userValue is less than 0.

presque 3 ans ago

Solved


Food safety
Assign safeTemperature with 1 if foodTemperature is less than 40 or greater than 165.

presque 3 ans ago

Solved


Derivative of polynomial
Compute the derivative of a given polynomial. The input is an <http://www.mathworks.com/help/matlab/math/representing-polynomial...

presque 3 ans ago

Solved


Sophie Germain prime
In number theory, a prime number p is a *Sophie Germain prime* if 2p + 1 is also prime. For example, 23 is a Sophie Germain prim...

presque 3 ans ago

Solved


Is it an Armstrong number?
An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number itself. Fo...

presque 3 ans ago

Solved


Close MATLAB with keyboard
Close MATLAB with keyboard without using mouse

presque 3 ans ago

Solved


Gauss Eliminate 2-by-2 example
Use forward elimination to make the coefficient matrix, A, an upper triangular matrix, and then solve using back substitution, f...

presque 3 ans ago

Solved


While loop: Summation
Write a while loop that assigns summedValue with the sum of all values from 1 to userNum. Assume userNum is always greater than ...

presque 3 ans ago

Solved


Matlab Basics - Rounding II
Write a script to round a variable x to 3 decimal places: e.g. x = 2.3456 --> y = 2.346

presque 3 ans ago

Solved


Roots
Find out the roots of a given polynomial equation.Given are the coefficients of the equation.

presque 3 ans ago

Solved


Duplicate a character
Duplicate a character 'n' times. Example 1: str='a' n=5 output='aaaaa' Example 2: str='*' n=3 output='***'

presque 3 ans ago

Solved


matrix of natural number
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 resides seially as shown in the examples below. ...

presque 3 ans ago

Solved


Volume of this donut
Given hole diameter a, and outermost diameter b, determine the volume y of the resulting donut.

presque 3 ans ago

Solved


ASCii Code
Using Matlab get the ASCii for '?'

presque 3 ans ago

Solved


Swap two numbers
Example Input: a = 10 b = 20 Output a = 20 b = 10

presque 3 ans ago

Solved


DC chopper
Input x is the sampled signal vector, may have both AC and DC components. output vector y should have AC components removed then...

presque 3 ans ago

Solved


Switch matrix to a column vector
for e.g. x = [1 2 3 4] y = 1 3 2 4

presque 3 ans ago

Solved


Create incrementing array
Given a and b generate an output matrix as shown in following examples: a=2 b=5 output=[2 20 200 2000 20000] a=4 b...

presque 3 ans ago

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